A procedure for setting up a call in a wireless local loop based on mobile communication technology in which terminal units are connected via a radio link to an access node and from the access node to a wired network local exchange via a standard V5 interface in which checking functions consistent with a mobile communication specification are carried out is disclosed herein. To accelerate call setup, checking functions are carried out during voice mode connection of the call.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A procedure for setting up a call in a wireless local loop based on mobile communication technology and in which subscriber terminal units are connected via a radio link to an access node and from the access node to a wired network local exchange and in which checking functions related to network security management are carried out, wherein, to accelerate call setup, said checking functions are carried out at a beginning of voice mode after ring-back tone has been received from the local exchange.
2. The procedure as defined in claim 1 , wherein said checking functions comprise: changing a subscriber identity code; verification of authenticity of a subscriber; and verification of a subscriber's equipment identity code.
3. The procedure as defined in claim 2 , wherein changing the subscriber identity code is via an allocation of a temporary subscriber identity code.
4. The procedure as defined in claim 2 , wherein verification of subscriber authenticity is via an authentication request.
5. The procedure as defined in claim 2 , wherein verification of subscriber's equipment identity code is via a check of a subscriber's international mobile station equipment identity code.
6. The procedure as defined in claim 1 , wherein said checking functions comprise: changing subscriber identity code; and verification of a subscriber's equipment identity code.
7. The procedure as defined in claim 6 , wherein changing the subscriber identity code is via an allocation of a temporary subscriber identity code.
8. The procedure as defined in claim 6 , wherein verification of the subscriber's equipment identity code is via a check of a subscriber's international mobile station equipment identity code.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
February 29, 2000
May 10, 2005
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